import java.util.Scanner;
public class Cla {
    String cls;
    String teacher;
    String date;
    String std[]=new String[30];
    int count=1;
    public void Cls(){
        Scanner in=new Scanner(System.in);
        do{
            System.out.println("请输入学生姓名：");
//            String a=in.next();
            std[count]=in.next();
            count++;
        }while(count<29);
    }
}
